No authentication is required to control the robot inside the network, moreso the latest available user manual shows an option that lets the user to add a password to the robot but as in xarm_studio 1.3.0 the option is missing from the menu. Assuming manual control, even by forcefully removing the current operator from an active session.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:HA:H9.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HOther